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We only ever create RenderParagraphs now. The only non-trivial change here is making RenderView a RenderFlexibleBox. This required changing custom.sky. That test was written in a fragile way that behaved differently if we did multiple layouts. Instead, having it be less racy and only change values during the test itself. This also throws a wrench in moving all the layout code to dart because we can't set the layout manager on the RenderView. Maybe we need to explicitly let you do so. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/1068683002
87 lines
3.6 KiB
C++
87 lines
3.6 KiB
C++
/*
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* Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_CORE_RENDERING_LINE_LINEWIDTH_H_
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#define SKY_ENGINE_CORE_RENDERING_LINE_LINEWIDTH_H_
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#include "sky/engine/platform/LayoutUnit.h"
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namespace blink {
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class FloatingObject;
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class RenderObject;
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class RenderParagraph;
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enum IndentTextOrNot { DoNotIndentText, IndentText };
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enum WhitespaceTreatment { ExcludeWhitespace, IncludeWhitespace };
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class LineWidth {
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public:
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LineWidth(RenderParagraph&, bool isFirstLine, IndentTextOrNot shouldIndentText);
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bool fitsOnLine() const { return currentWidth() <= (m_availableWidth + LayoutUnit::epsilon()); }
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bool fitsOnLine(float extra) const { return currentWidth() + extra <= (m_availableWidth + LayoutUnit::epsilon()); }
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bool fitsOnLine(float extra, WhitespaceTreatment whitespaceTreatment) const
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{
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return currentWidth() - (whitespaceTreatment == ExcludeWhitespace ? trailingWhitespaceWidth() : 0) + extra <= (m_availableWidth + LayoutUnit::epsilon());
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}
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float currentWidth() const { return m_committedWidth + m_uncommittedWidth; }
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// FIXME: We should eventually replace these three functions by ones that work on a higher abstraction.
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float uncommittedWidth() const { return m_uncommittedWidth; }
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float committedWidth() const { return m_committedWidth; }
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float availableWidth() const { return m_availableWidth; }
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float trailingWhitespaceWidth() const { return m_trailingWhitespaceWidth; }
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void updateAvailableWidth();
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void addUncommittedWidth(float delta) { m_uncommittedWidth += delta; }
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void commit();
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void fitBelowFloats(bool isFirstLine = false);
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void setTrailingWhitespaceWidth(float width) { m_trailingWhitespaceWidth = width; }
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bool shouldIndentText() const { return m_shouldIndentText == IndentText; }
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private:
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void computeAvailableWidthFromLeftAndRight();
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void updateLineDimension(LayoutUnit newLineTop, LayoutUnit newLineWidth, const float& newLineLeft, const float& newLineRight);
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RenderParagraph& m_block;
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float m_uncommittedWidth;
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float m_committedWidth;
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float m_trailingWhitespaceWidth;
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float m_left;
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float m_right;
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float m_availableWidth;
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IndentTextOrNot m_shouldIndentText;
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};
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}
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#endif // SKY_ENGINE_CORE_RENDERING_LINE_LINEWIDTH_H_
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